Skimmer for boiler-cleaners



2 Sheets-Sheet 1.

(No Model.)

B. W. VAN DUZEN.

SKIMMEAR POE. BOILER CLEANERS.

Patented Dec. 2, 1884.

INVENTOR WITNESSES flttorneys 2 Sheets-Sheet- 2.

(No Model.)

E. W. VAN DUZEN.

I SKIMMER FOR BOILER CLEANERS. No. 308,644. Patented Dec. 2, 1884.

Jittorney;

WITJV' SSES 74 Nrrnn STATE ATENT Fries.

EZRA W. VA-NDUZEN, or NEWPORT, KENTUCKY.

SKIMMER FOR BOlLER-CLEANERS.

EGB-LIEICATION teaming part'or' Letters Patent No. 308,644; datedDecember 2, 1884.

Application filed April .28, 1894. (No model.)

To aZZ whom it may concern:

Be it known that I, EZRA XV. VANDUZEN, a citizen of the United States,residing at Newport, in the county of Campbell and State of Kentucky,have invented a new and useful Skimmer for Boiler-Cleaners, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

This invention has relation to skimmers for boiler-cleaners; and itconsists in the construction and novel arrangement of parts, as will behereinafter fully described, and particularly pointed out in the claims.Y

Figure 1 is a view in perspective(a portion of the shell being brokenaway) of my waterpuriiier and mechanical and automatic boilercleaner,Patent No. 292,076, granted to me on the 15th day of January, 1884, withmy improved skimmer attach ed. Fig. 2 is avertical sectional view of theskimmer detached. Fig. 3 is a plan view of the skimmer detached, andFig. 4 is a perspective view of my skimmer with bail attached. Fig. 5 isa detail view of the ejector or apparatus for mingling the water fromthe heater with that from the boil or. Fig. 6 is a side elevation of thedevice attached to the boiler.

Referring by letter to the accompanying drawings, similar letters ofreference indicate the same parts in the several figures.

.The improved skimmer is made of sheet-iron in the shape of a funnel,withv the bottom out off and closed. In size the skimmer is aboutsixteen inches in diameter at the top and about four inches in diameterat the bottom, the sides sloping outward and upward at an angle of aboutforty-five degrees from the bottom.

R designates slots out in the sides of the skimmer, running down fromthe top edge,and having the metal at one side bent inward, as shown atu, so as to permit the water and impurities floating on it to pass intothe skimmer at an angle to the center of the skimmer, as shown at V. Theobject is to give all of the currents of water entering the skimmer nearthe top and at the top and above a circular motion, all in the samedirection, so the impurities floating on and in the water may be keptfrom settling on the inner side of the skimmer, which will be thrown bythe whirling motion of the water toward the suction-pipe F,thus forminga vortex around this pipe. The slots S, which are preferably crescentshape, are located below the slots 1%, and are intended to admit thewater and impurities into the skimmer when the water is at a low levelin the boiler. The metal forming the tongue part of these slots S isbent inward and upward, as shown at T, so as to permit the water toenter as shown by arrow at V. The tongue T is to prevent the impuritiesonce inside of the skinr mer from falling out into the boiler when thewater is at a higher level.

. The shape of the skimmer may be variedi. 0., it may be oblong, 'four,six, or eightsided, or crescent shapewithont departing from thecharacter of the invention.

The skimmer is attached to the pipe F by an iron strap or bail, O, andbolts or rivets P P, and clamp and bolts Q, so that it can be adjustedto any height in the boiler desired.

The shape of theslots and openings in the sides of the skimmer may bevaried and still accomplish the work or purpose desired.

I am aware of Patents No. 201,446,0f March 19, 1878, and No. 204,250, ofApril 11, 1878,

wherein a funnel with openings in the side and J an outlet through thebottom downward are shown; but my device has a closed bottom, so thewater and impurities will not flow out, but must be lifted out of theskimmer by suction through the pipe F.

A designates the steam-boiler. B is the purifying-chamber; B the lower,and B' the upper, head of the same. b are the settling diaphragms orpans inside of said chamber. b is the perforated portion of the same. 0is the pipe which conveys the Water from the boiler to the purifier; O,valve in same; D, water-pipe supplying the chamber; 1), the ejector ordevice for mixing the feed-water with that from the boiler; D the pipeconveying said water to the purifier; d, a vessel for containing soda orother suitable purifying material; 61, cutoff valve, and d drain-cock; dscrew-cap screwing onto the top of vessel d; E, boiler feed-pipe leadingfrom the purifying-vessel to the boiler; E, valve in the same; f, ledgeson the settlingdiaphragms I); G, the blowoff pipe; Gr, valve in same;leg or standard tapped into bottom of pipe G, and resting on the floorto support the apparatus; Z, legs supporting the diaphragms b.

The operation of my device is as follows: Valves 0 and E are opened,water is forced through pipe D and downward through ejector D by a pumpor inspirator, which causes a flow of water from boiler A through pipe 0to ejector D, where it mingles with the water from the pump, comingthrough pipe D, and thence through pipe D", to the purifier. The valve dis left open, so that water from the pump or inspirator can enter vessel(1 and dissolve the soda contained therein, when the pulsation of thepump or inspirator exhausts a portion of the solution and mingles itwith the feed-water, and it passes with it into thepurifying-chamber,and assists in separating the lime or other impuritiesfrom the water and depositing the same in the purifying-chamber. Afterthe water enters the purifier it follows the course indicated by thearrows in Fig. 1, passing upward, and depositing the mud orother-sediment it contains upon the plates 1). Ledgefserves to retainthe deposited sediment upon said plates or diaphragms. The water passesthus slowly through vessel B. depositing its sediment on diaphragm b,and goes out through pipe E to the boiler at the end thereof containedin vessel B, valves G and E are first closed, (the pump being stopped.)Valve G is then opened, and the water in vessel B is allowed to run out.Valve E is then opened, and water is forced by pressure in the boiler Athrough pipe E, and dashes down upon diaphragms Z), washing off allsediment lying thereon and carrying it down through mud chamber B andblow-oif pipe G. In blowing out vessel 13 the water takes a course justthe opposite of that indicated by the arrows in Fig. 1.

It will be seen that the perforated or open portions of the diaphragmsare located alternately on opposite sides of vessel B, and each over thesolid portion of the next in series be low. By this arrangement thewater strikes fairly upon the top of said solid portions and readilywashes off all sediment thereon.

The skimmer shown in Fig. 4 is similar to the one hereinbefore describedin all respects, except in the omission of the slots S.

Having thus fully described my invention, whatI claim as new, and desireto secure by Letters Patent of the United States, is

1. A skimmer for boiler-cleaners of the class shown, consisting of aclosed bottom shell provided with the slots R and S in its sides,provided, respectively, with the flanges u and T, in combination withthe suction-pipe F, substantially as specified.

2. A skimmer for boilercleaners of the class shown, consisting of thefunnel-shaped shell having a closed bottom, and having its sidesprovided with the slots R, running from the top edge downwardly, andprovided with the side flanges, u, and the slots S, having tongues Tbelow the slots It, and the bail 0, adj ustably secured to thesuction-pipe F, substantially as specified.

3. A funnel-sh aped skimmer havingaclosed bottom and flanged slots S Tnear the bottom, in combination with the suction-pipe F in thesteam-boiler, substantially as specified.

4. A funnel-shaped skimmer having a closed bottom and flanged slots T U,running from the top edge downward, in combination with the suction-pipeand hail, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto aflixedmy signature in presence of two witnesses.

EZRA WV. VA-NDUZEN.

YVitnesses: I

ALFRED R. MULLINs, JAMES E. CULvER.

